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About this Object

Object Name:

Hickson Compact Group 87 • HCG 87

Object Description:

Cluster of Interacting Galaxies

Position (J2000):

R.A.20h 48m 11.9s
Dec: -19° 50' 26"

Constellation:

Capricornus (Capricorn)

Total Visual Magnitude:

V=14.0 magnitude (brightest galaxy in group)

Distance:

120 megaparsecs (roughly 400 million light-years)

Dimensions:

The galaxy group has a diameter of 52kpc (170,000 light-years).

About the Data

Instrument:

WFPC2

Exposure Dates:

July 19-25, 1999

Exposure Time:

6.6 hours

Filters:

F450(B), F555W(V), F675W(R), F814W(I)

Colors:

Chromatic order; Blue: B filter, Green: V filter, Red: R and I filters

Principal Astronomers:

J. Charlton (PSU), S. Hunsberger (Lowell Obs.), F. Hamilton, H. Bond, C. Christian, J. English, L. Frattare, A. Kinney, Z. Levay, K. Noll (Hubble Heritage Team).

About this Image

Image Credit:

NASA and The Hubble Heritage Team (STScI/AURA)

Release Date:

September 2, 1999 12:00 noon (EDT)

Orientation/Scale:

North is toward the upper left of the image.